Searchkick: Fix Sample metadata indexing part 2

[ericenns]

What does this PR do and why?

Describe in detail what your merge request does and why.

Update string_template template to exclude metadata.
Update metadata_non_dates template to use keyword instead of text so that string comparison where conditions can be used.
Update db/seeds.rb to disable Searchkick callbacks when adding data.

Screenshots or screen recordings

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How to set up and validate locally

Numbered steps to set up and validate the change are strongly suggested.

1. Reset the database.
2. Open a rails console and verify that the following searches produce results.

Sample.search("*", where: { "metadata.earliest_date": { lte: 1.day.ago } }).first

Sample.search("*", where: { "metadata.food": { like: "%Tofu%" } }).first

Sample.search("*", where: { "metadata.food": "Pierogi" }).first

Sample.search("*", where: { "metadata.age.numeric": { "gte": 10, "lte": 11 } }).pluck("metadata").map{|x| x["age"]}

PR acceptance checklist

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• I have evaluated the PR acceptance checklist for this PR.

[github-actions]

Code Metrics Report

Coverage	Test Execution Time
92.6%	10m16s

Code coverage of files in pull request scope (94.3%)

Files	Coverage
app/models/sample.rb	94.3%

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Reported by octocov

[ksierks]

Queries work as expected.
I was just wondering if we need to handle case insensitivity? I remember the metadata needed to be all lower case. I can find "Tofu" and "Perogi", but not "tofu" and "perogi". Will we lower case the user inputs in a future PR?
Thanks!

[ChrisHuynh333]

Works for me!